Dictionary.com
Thesaurus.com
Synonyms

heavy metal

American  

noun

  1. any metal with a specific gravity of 5.0 or greater, especially one that is toxic to organisms, as lead, mercury, copper, and cadmium.

  2. aggressive and heavily amplified rock music, commonly performed by groups that wear spectacular or bizarre costumes.


heavy metal British  

noun

    1. a type of rock music characterized by a strong beat and amplified instrumental effects, sometimes with violent, or nihilistic lyrics

    2. ( as modifier )

      a heavy-metal band

  1. a metal with a high specific gravity

  2. military large guns or shot

"Collins English Dictionary — Complete & Unabridged" 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012

Other Word Forms

Etymology

Origin of heavy metal

1860–65, for literal sense

Example Sentences

Examples are provided to illustrate real-world usage of words in context. Any opinions expressed do not reflect the views of Dictionary.com.

Heavy metal might have eventually come to exist without Ozzy, but it would’ve looked and sounded very different.

From Salon • Jul. 26, 2025

Heavy metal legends Iron Maiden have announced they will be touring with a new drummer.

From BBC • Dec. 9, 2024

"Heavy metal exposure has been linked to degenerative heart disease, immunodeficiency and increased parasite infestations, among other disease risks."

From Science Daily • Feb. 21, 2024

Heavy metal and hard rock thrive on instrumental prowess, as Metallica’s Kirk Hammett and Rob Trujillo demonstrated in a performance of a song they said they’d composed earlier Sunday.

From Los Angeles Times • Oct. 9, 2023

Heavy metal doors open and lock behind us as the policeman leads me through a maze of rooms and out past a tall, spiky gate.

From "Born Behind Bars" by Padma Venkatraman